import { defineStore } from "pinia";
import router, { constantRoutes, dynamicRoutes } from "@/router";
import store from "@/store";
import auth from "@/plugins/auth";
import type { RouteOption } from "vue-router";
import { getRouters } from "@/api/menu";
import Layout from "@/layout/index.vue";
import ParentView from "@/components/ParentView/index.vue";
import InnerLink from "@/layout/components/InnerLink/index.vue";
// 匹配views里面所有的.vue文件
const modules = import.meta.glob("./../../views/**/*.vue");

export const usePermissionStore = defineStore("permission", () => {
  // 路由
  const routes = ref<RouteOption[]>([]);
  // 动态路由
  const addRoutes = ref<RouteOption[]>([]);
  // 默认路由
  const defaultRoutes = ref<RouteOption[]>([]);
  //
  const topBarRouters = ref<RouteOption[]>([]);
  //
  const sidebarRouters = ref<RouteOption[]>([]);

  /**
   * 动态添加可访问路由表
   */
  const generateRoutes = async (): Promise<RouteOption[]> => {
    const res = await getRouters();
    const { data } = res;
    const sData = JSON.parse(JSON.stringify(data));
    const rData = JSON.parse(JSON.stringify(data));
    const defaultData = JSON.parse(JSON.stringify(data));
    const sidebarRoutes = filterAsyncRouter(sData);
    const rewriteRoutes = filterAsyncRouter(rData, undefined, true);
    const defaultRoutes = filterAsyncRouter(defaultData);
    const asyncRoutes = filterDynamicRoutes(dynamicRoutes);
    asyncRoutes.forEach(route => {
      router.addRoute(route);
    });
    setRoutes(rewriteRoutes);
    setSidebarRouters(constantRoutes.concat(sidebarRoutes));
    setDefaultRoutes(sidebarRoutes);
    setTopBarRoutes(defaultRoutes);
    return new Promise<RouteOption[]>(resolve => resolve(rewriteRoutes));
  };

  /**
   * 过滤后台传来的路由字符串，转换为组件
   * @param asyncRouterMap 后台传来的路由字符串
   * @param lastRouter 上一级路由
   * @param type 是否重写路由
   */
  const filterAsyncRouter = (asyncRouterMap: RouteOption[], lastRouter?: RouteOption, type = false): RouteOption[] => {
    return asyncRouterMap.filter(route => {
      if (type && route.children) {
        route.children = filterChildren(route.children, undefined);
      }
      if (route.component) {
        // Layout ParentView 组件特殊处理
        if (route.component === "Layout") {
          route.component = Layout;
        } else if (route.component === "ParentView") {
          route.component = ParentView;
        } else if (route.component === "InnerLink") {
          route.component = InnerLink;
        } else {
          route.component = loadView(route.component);
        }
      }
      if (route.children != null && route.children && route.children.length) {
        route.children = filterAsyncRouter(route.children, route, type);
      } else {
        delete route.children;
        delete route.redirect;
      }
      return true;
    });
  };

  /**
   * 过滤子路由
   * @param childrenMap 子路由
   * @param lastRouter 上一级路由
   */
  const filterChildren = (childrenMap: RouteOption[], lastRouter?: RouteOption): RouteOption[] => {
    let children: RouteOption[] = [];
    childrenMap.forEach(el => {
      if (el.children && el.children.length) {
        if (el.component === "ParentView" && !lastRouter) {
          el.children.forEach(c => {
            c.path = el.path + "/" + c.path;
            if (c.children && c.children.length) {
              children = children.concat(filterChildren(c.children, c));
              return;
            }
            children.push(c);
          });
          return;
        }
      }
      if (lastRouter) {
        el.path = lastRouter.path + "/" + el.path;
        if (el.children && el.children.length) {
          children = children.concat(filterChildren(el.children, el));
          return;
        }
      }
      children = children.concat(el);
    });
    return children;
  };

  /**
   * 设置路由
   * @param newRoutes 新路由
   */
  const setRoutes = (newRoutes: RouteOption[]): void => {
    addRoutes.value = newRoutes;
    routes.value = constantRoutes.concat(newRoutes);
  };

  const setTopBarRoutes = (routes: RouteOption[]): void => {
    topBarRouters.value = routes;
  };

  const setSidebarRouters = (routes: RouteOption[]): void => {
    sidebarRouters.value = routes;
  };

  const setDefaultRoutes = (routes: RouteOption[]): void => {
    defaultRoutes.value = constantRoutes.concat(routes);
  };

  return {
    routes,
    setRoutes,
    generateRoutes,
    setSidebarRouters,
    topBarRouters,
    sidebarRouters,
    defaultRoutes
  };
});

/**
 * 载入视图
 * @param view
 */
export const loadView = (view: any) => {
  let res;
  for (const path in modules) {
    const dir = path.split("views/")[1].split(".vue")[0];
    if (dir === view) {
      res = () => modules[path]();
    }
  }
  return res;
};

/**
 * 动态路由遍历，验证是否具备权限
 * @param routes 路由
 */
export const filterDynamicRoutes = (routes: RouteOption[]) => {
  const res: RouteOption[] = [];
  routes.forEach(route => {
    if (route.permissions) {
      if (auth.hasPermiOr(route.permissions)) {
        res.push(route);
      }
    } else if (route.roles) {
      if (auth.hasRoleOr(route.roles)) {
        res.push(route);
      }
    }
  });
  return res;
};

// 非setup
export const usePermissionStoreHook = () => {
  return usePermissionStore(store);
};

export default usePermissionStore;
